635 MK - Mechanical expanding shafts with lugs

The Model 635/MK is primarily recommended for unwinding and winding rolls that have cores.

The body of the shaft is available in a variety of steels; the expanding lugs come in either steel, plastic or rubber covered depending upon core material and torque requirements. The journal ends are also available in a variety of steels and are always custom-made. Expansion is accomplished by a square socket located in the end of one journal. The positive expansion and retraction that is gained results in self-centering of the roll and the ability to handle higher torque requirements.

Standard sizes available for this Model are listed below.


  • Core diameter: from 50 to 300 mm.
  • Face width: from 800 to 4000 mm.
  • Expansion range: 12 mm on diameter

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